Gas sensing with high-resolution localized surface plasmon resonance spectroscopy

Julia M. Bingham, Jeffrey N. Anker, Lauren E. Kreno, Richard P. Van Duyne

Research output: Contribution to journalArticle

170 Scopus citations

Abstract

We report the first inert gas sensing and characterization studies based on high-resolution localized surface plasmon resonance (HR-LSPR) spectroscopy. HR-LSPR was used to detect the extremely small changes (<3 × 10 -4) in bulk refractive index when the gas was switched between He(g) and Ar(g) or He(g) and N2(g). We also demonstrate submonolayer sensitivity to adsorbed water from exposure of the sensor to air (40% humidity) versus dry N2(g). These measurements significantly expand the applications space and characterization tools for plasmonic nanosensors.

Original languageEnglish (US)
Pages (from-to)17358-17359
Number of pages2
JournalJournal of the American Chemical Society
Volume132
Issue number49
DOIs
StatePublished - Dec 15 2010

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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